Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-26-2013, 05:34 PM   #1
Newbie
 
Join Date: Jan 2013
Posts: 1
Rewards Points: 10
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


So I purchased a gallon of Henrys Masic and I want to apply it to my two leaking penetrations at my home...

When trying to remove the old Mastic its pretty solid.

1. How much of the original mastic do I need to remove?
2. Should I take a hammer and chisel to it or is there a chemical I can use to soften old mastic.

Photos
http://imgur.com/a/Oo9Z2







Last edited by plasticslug; 01-26-2013 at 06:47 PM.
plasticslug is offline   Reply With Quote
Old 01-26-2013, 06:22 PM   #2
Pro Slate Roofer
 
tinner666's Avatar
 
Join Date: Mar 2005
Location: Richmond, Va.
Posts: 1,600
Rewards Points: 1,016
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


Pix would help. mastic usually lead to leaking issues. Maybe it all needs to be removed and the penetrations need to be flashed instead.

tinner666 is offline   Reply With Quote
Old 01-26-2013, 06:29 PM   #3
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 26,963
Rewards Points: 3,042
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


Is this for real?
You need to now remove all of that and do it over right.
That dish cable and bracket should never have been mounted on the roof or run down through the roof like that!!!
http://www.bing.com/images/search?q=...lectedIndex=60
joecaption is online now   Reply With Quote
Old 01-26-2013, 10:55 PM   #4
Metal Roofing
 
Join Date: Jan 2012
Location: Mission Viejo, CA
Posts: 533
Rewards Points: 540
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


For god sake dont do that, have it flashed properly. It looks like an AC line to me, but either way it needs a flashing not what you are proposing.
AndyWRS is offline   Reply With Quote
Old 01-26-2013, 11:01 PM   #5
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 26,963
Rewards Points: 3,042
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


I've been in home repair for over 40 years and have not use a gal. of roofing tar in my whole life, take it back and just buy one caulking tube of it to put under the new flashings.
joecaption is online now   Reply With Quote
Old 01-28-2013, 12:06 PM   #6
Roofmaster
 
Join Date: Oct 2012
Location: Maryland
Posts: 3,635
Rewards Points: 2,028
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


You need a Portals Plus penetration flashing, not roof cement, and you need a roofer that understands headlap, and that a properly flashed penetration on a steep roof requires no roof cement. Google Portals Plus.
__________________
" A lot of men build things, and a lot of things fall down "

jagans is offline   Reply With Quote
Old 01-30-2013, 09:22 PM   #7
Quality Exteriors of CT
 
QualityRoofing's Avatar
 
Join Date: Jan 2013
Location: Danbury CT
Posts: 3
Rewards Points: 10
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


Wow, please call a roofer and have them fix this. Putting goop over the problem will only stop the leak temporarily, it will eventually crack and leak again. Call a roofer and have them install flashing on the pipe boot, I'm not sure what the other extrusion on the roof is, pretty sure it doesn't belong on he roof thou.

Quality Exteriors of CT
QualityRoofing is offline   Reply With Quote
Old 01-31-2013, 01:45 AM   #8
Roofmaster
 
Join Date: Oct 2012
Location: Maryland
Posts: 3,635
Rewards Points: 2,028
Default

[Leaking Roof] How Do I Remove Old Mastic/elastomeric Coating?


What you have is roofing or flashing cement, coated with aluminum coating on a seal tite cable and a thermostat wire.

A really good way to handle this is to put a 3 inch PVC pipe up through the roof, and strap it to the top chord of the truss or rafter and an additional brace with Ubolts. Install a rubber All-Vent on the pipe, then glue a return bend or two street Els on the end of the pipe so the end points down. Run your lines through, and foam the end of the pipe.

__________________
" A lot of men build things, and a lot of things fall down "

jagans is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How many coats of elastomeric coating do we need? bayles Roofing/Siding 5 10-08-2010 01:47 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.